Finding the Fourth Proportional to 777,956,000.10, 1,073,582,492.53 and 420,723,768.99
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Solution
The fourth proportional to 777,956,000.10, 1,073,582,492.53 and 420,723,768.99 is: 580,600,538.49
Step by Step Solution
- Step 1: Write the proportion equation
777,956,000.10 : 1,073,582,492.53 = 420,723,768.99 : x - Step 2: Convert to fraction form
777,956,000.10/1,073,582,492.53 = 420,723,768.99/x - Step 3: Cross multiply
777,956,000.10x = 1,073,582,492.53 × 420,723,768.99 - Step 4: Simplify right side
777,956,000.10x = 451,681,672,578,900,096 - Step 5: Solve for x
x = 451,681,672,578,900,096/777,956,000.10 - Step 6: Final answer
x = 580,600,538.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.